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Cloud Peak Energy says unit received imminent danger order on January 15On January 15, during a routine inspection by the Mine Safety and Health Administration, Antelope Coal LLC, a subsidiary of both Cloud Peak Energy Inc. and of Cloud Peak Energy Resources LLC, received an imminent danger order under section 107(a) of the Federal Mine Safety and Health Act of 1977 at the Antelope mine in Converse County, Wyoming based on an electrical short circuit and resulting arc on an outside pole transformer. Mine personnel immediately took corrective action by isolating the transformer bank, shutting off power to the transformer and arranging for the replacement of the transformer and other appropriate electrical repair work. The repair work is pending completion, and power will remain shut off to the impacted transformer until that time. We expect the order will be terminated upon completion of the repair work.The condition cited in the order referred to above did not result in an accident or injury and did not have a material adverse impact on the Antelope mine’s operations.